uboot-phytec

// SPDX-License-Identifier: GPL-2.0

/*

 * Implementation of per-board codec beeping

 * Copyright (c) 2011 The Chromium OS Authors.

 * Copyright 2018 Google LLC

 */

​

#define LOG_CATEGORY    UCLASS_SOUND

​

#include <common.h>

#include <dm.h>

#include <hda_codec.h>

#include <pci.h>

#include <sound.h>

#include <asm/io.h>

#include <dt-bindings/sound/azalia.h>

​

/**

 * struct hda_regs - HDA registers

 *

 * https://wiki.osdev.org/Intel_High_Definition_Audio

 * https://www.intel.com/content/www/us/en/standards/high-definition-audio-specification.html

 */

struct hda_regs {

    u16 gcap;

    u8 vmin;

    u8 vmaj;

    u16 outpay;

    u16 inpay;

    u32 gctl;

    u16 wakeen;

    u16 statests;

    u8 reserved[0x50];

    u32 cmd;        /* 0x60 */

    u32 resp;

    u32 icii;

};

​

enum {

    HDA_ICII_BUSY           = BIT(0),

    HDA_ICII_VALID          = BIT(1),

​

    /* Common node IDs */

    HDA_ROOT_NODE           = 0x00,

​

    /* HDA verbs fields */

    HDA_VERB_NID_S          = 20,

    HDA_VERB_VERB_S         = 8,

    HDA_VERB_PARAM_S        = 0,

​

    HDA_VERB_GET_PARAMS     = 0xf00,

    HDA_VERB_SET_BEEP       = 0x70a,

​

    /* GET_PARAMS parameter IDs */

    GET_PARAMS_NODE_COUNT       = 0x04,

    GET_PARAMS_AUDIO_GROUP_CAPS = 0x08,

    GET_PARAMS_AUDIO_WIDGET_CAPS    = 0x09,

​

    /* Sub-node fields */

    NUM_SUB_NODES_S         = 0,

    NUM_SUB_NODES_M         = 0xff << NUM_SUB_NODES_S,

    FIRST_SUB_NODE_S        = 16,

    FIRST_SUB_NODE_M        = 0xff << FIRST_SUB_NODE_S,